EP 0002989 A1 19790711 - Process for preparation of organic acid halide.
Title (en)
Process for preparation of organic acid halide.
Title (de)
Verfahren zur Herstellung eines organischen Säurehalids.
Title (fr)
Procédé pour la préparation d'un halogénure d'un acide organique.
Publication
Application
Priority
US 86521977 A 19771228
Abstract (en)
[origin: US4136113A] A process for the preparation of organic acid halide such as acetyl chloride by reacting an organic acid anhydride with a silicon halide, such as silicon tetrachloride, under conditions such that the organic acid halide is produced along with silica which is easily separated and disposed of. A Lewis Acid metal halide catalyst is used and superior yields are obtained. The reaction is desirably carried out in the presence of a chlorohydrocarbon solvent in which the metal halide catalyst chosen and the reactants and products are soluble.
IPC 1-7
IPC 8 full level
B01J 27/00 (2006.01); C07C 51/00 (2006.01); C07C 51/60 (2006.01); C07C 67/00 (2006.01); C07C 53/40 (2006.01)
CPC (source: EP US)
C07C 51/60 (2013.01 - EP US)
C-Set (source: EP US)
Citation (search report)
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, pages 2114-2116, Vol. 49, 1927 R.E. MONTONNA: "Silicon Tetrachloride as a Reagent for the Preparation of Acid Chlorides".
Designated contracting state (EPC)
BE CH DE FR GB IT
DOCDB simple family (publication)
US 4136113 A 19790123; CA 1099286 A 19810414; DE 2861221 D1 19811224; EP 0002989 A1 19790711; EP 0002989 B1 19811021; IT 1110878 B 19860106; IT 7852454 A0 19781227; JP S5495507 A 19790728; JP S565728 B2 19810206
DOCDB simple family (application)
US 86521977 A 19771228; CA 317017 A 19781128; DE 2861221 T 19781221; EP 78400254 A 19781221; IT 5245478 A 19781227; JP 16452978 A 19781227